A new energy development power generation device convenient to maintain and a maintenance method

Abstract

This invention relates to a maintenance-friendly power generation device for new energy development, comprising a housing and a speed-increasing gearbox built into the housing, a maintenance mechanism for changing the lubricating oil in the speed-increasing gearbox, and an oil temperature improvement mechanism for cooling the lubricating oil in the speed-increasing gearbox. Both the maintenance mechanism and the oil temperature improvement mechanism are located within the housing. A maintenance method for the power generation device for new energy development is also provided. The maintenance mechanism is used to change the lubricating oil in the speed-increasing gearbox to complete the maintenance of the gearbox; the oil temperature improvement mechanism is used to lower the temperature of the lubricating oil in the speed-increasing gearbox, thereby increasing the service life of the lubricating oil. This invention allows for lubricating oil replacement in the speed-increasing gearbox via the maintenance mechanism, eliminating the need for manual climbing of the wind power equipment tower for maintenance; and the oil temperature improvement mechanism effectively reduces the impact of ambient temperature on the lubricating oil.

Description

Technical Field

[0001] This invention relates to the field of maintenance technology for power generation devices used in new energy development, specifically to a new energy development power generation device and maintenance method that are easy to maintain. Background Technology

[0002] New energy development encompasses a series of production technology activities, including research, investigation, design, exploration, mining, construction, and utilization of newly discovered or yet-to-be-discovered energy resources such as solar, wind, geothermal, and nuclear energy. New energy development is a crucial component of energy development. Solar and wind energy are among the most common in daily life. Wind power generation devices primarily consist of wind turbine towers, which are mainly composed of gearboxes, generators, and electrical control systems. The gearboxes contain gear sets. To ensure the service life of the gearboxes, the lubricating oil needs to be replaced regularly to maintain the power generation device. Currently, maintaining the gearboxes on existing wind turbine towers requires workers to climb the tower to change the lubricating oil, which is time-consuming, labor-intensive, and inconvenient. Furthermore, the viscosity of the lubricating oil decreases at higher ambient temperatures, affecting its service life and effectiveness, indicating certain shortcomings. Summary of the Invention

[0003] The purpose of this invention is to provide a power generation device and maintenance method for new energy development that are easy to maintain, which can at least solve some of the defects in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a power generation device for new energy development that is easy to maintain, including a housing and a speed-increasing gearbox built into the housing, and further including a maintenance mechanism for changing the lubricating oil of the speed-increasing gearbox and an oil temperature improvement mechanism for cooling the lubricating oil in the speed-increasing gearbox, wherein the maintenance mechanism and the oil temperature improvement mechanism are both disposed inside the housing.

[0005] Furthermore, the maintenance mechanism includes an oil outlet connector, an oil inlet connector, an oil injection pipe, and an oil pump. The oil pump is fixedly installed on the top of the speed-increasing gearbox. The lubricating oil in the speed-increasing gearbox flows out through the oil outlet connector. The oil pump is used to draw the lubricating oil from the oil tank into the oil injection pipe. The oil injection pipe delivers the lubricating oil to the speed-increasing gearbox through the oil inlet connector.

[0006] Furthermore, the maintenance mechanism also includes a first tee connector, a second tee connector, a first solenoid valve, and a second solenoid valve. The two ends of the oil injection pipe are respectively connected to the oil inlet connector and one of the connectors of the first tee connector. The output end of the oil pump is connected to one of the connectors of the first tee connector. The other connector of the first tee connector is connected to one of the connectors of the second tee connector. The other two connectors of the second tee connector are respectively connected to the first solenoid valve and the second solenoid valve. The other end of the first solenoid valve is connected to the oil outlet connector.

[0007] Furthermore, the oil temperature improvement mechanism includes a liquid tank, the liquid phase is fixedly installed on the top of the speed-increasing gearbox, the oil injection pipe horizontally penetrates the liquid tank, a third solenoid valve is installed on the oil injection pipe, a confluence connector is installed at one end of the oil injection pipe, a diverter connector is installed at the other end of the oil injection pipe, and multiple semiconductor coolers are fixedly installed through one side plate of the liquid tank.

[0008] Furthermore, the oil temperature improvement mechanism also includes a corrugated cooling plate, which has multiple fine holes with the same shape as the corrugated cooling plate. The fine holes are connected to the fourth solenoid valves at both ends of the corrugated cooling plate. A first connector is installed at one end of the corrugated cooling plate, and a second connector is installed at the other end of the corrugated cooling plate. The confluence connector and the first connector are fixedly sleeved together, and the diversion connector and the second connector are fixedly connected through the fourth solenoid valve.

[0009] Furthermore, an electrothermal film is attached to the outer wall of the corrugated cooling plate.

[0010] Furthermore, the outer wall of the liquid tank is covered with an insulation layer, and the inner wall of the liquid tank is lined with a polytetrafluoroethylene liner.

[0011] Furthermore, it also includes a sensor assembly for measuring the height and temperature of the lubricating oil inside the speed-increasing gearbox, the sensor assembly being mounted on the inner wall of the speed-increasing gearbox.

[0012] Furthermore, it also includes a filter screen for filtering impurities in the lubricating oil entering the speed-increasing gearbox, the filter screen being disposed inside the speed-increasing gearbox.

[0013] The present invention also provides the following technical solution: a maintenance method for a power generation device for new energy development, wherein a maintenance mechanism is used to replace the lubricating oil in the speed-increasing gearbox to complete the maintenance of the speed-increasing gearbox; and an oil temperature improvement mechanism is used to reduce the temperature of the lubricating oil in the speed-increasing gearbox to improve the service life of the lubricating oil.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by changing the lubricating oil of the speed-increasing gearbox through the maintenance mechanism, the entire maintenance process does not require manual climbing of the wind power equipment tower to maintain the speed-increasing gearbox; by cooling the lubricating oil in the speed-increasing gearbox through the oil temperature improvement mechanism, the influence of ambient temperature on the lubricating oil can be effectively reduced, avoiding the occurrence of lubricating oil viscosity reduction due to high ambient temperature, and improving the service life of the lubricating oil. Attached Figure Description

[0015] Figure 1 A schematic diagram of the internal structure of a power generation device for new energy development that is easy to maintain, provided as an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the internal structure of the liquid tank of a power generation device for new energy development that is easy to maintain, provided as an embodiment of the present invention;

[0017] Figure 3 A three-dimensional structural diagram of a corrugated cooling plate for a new energy development power generation device that is easy to maintain, provided as an embodiment of the present invention;

[0018] Figure 4 for Figure 2 A schematic diagram of the AA-direction cross-sectional structure;

[0019] In the attached diagram, the following are the reference numerals: 1. Housing; 2. Speed-increasing gearbox; 3. Oil outlet connector; 4. Oil inlet connector; 5. Liquid tank; 6. Oil pump; 7. First tee connector; 8. Second tee connector; 9. First solenoid valve; 10. Second solenoid valve; 11. Sensor assembly; 12. Oil injection pipe; 13. Third solenoid valve; 14. Diverter connector; 15. Merging connector; 16. Corrugated cooling plate; 17. First connector; 18. Second connector; 19. Fourth solenoid valve; 20. Diverter chamber; 21. Fine orifice; 22. Semiconductor cooler. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1This invention provides a maintenance-friendly power generation device for new energy development, comprising a housing 1 and a speed-increasing gearbox 2 built into the housing 1. It also includes a maintenance mechanism for changing the lubricating oil in the speed-increasing gearbox 2 and an oil temperature improvement mechanism for cooling the lubricating oil in the speed-increasing gearbox 2. Both the maintenance mechanism and the oil temperature improvement mechanism are located within the housing 1. In this embodiment, the speed-increasing gearbox 2 is fixedly installed inside the housing 1. An oil outlet connector 3 is horizontally fixedly installed through the bottom of one side plate of the speed-increasing gearbox 2, and an oil inlet connector 4 is vertically fixedly installed through the top plate of the oil outlet connector 3. A maintenance mechanism with an oil pump 6 is installed on the top surface of the top plate of the speed-increasing gearbox 2.

[0022] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 3 The maintenance mechanism includes an oil outlet connector 3, an oil inlet connector 4, an oil injection pipe 12, and an oil pump 6. The oil pump 6 is fixedly installed on the top of the speed-increasing gearbox 2. The lubricating oil in the speed-increasing gearbox 2 flows out through the oil outlet connector 3. The oil pump 6 is used to draw lubricating oil from the oil tank into the oil injection pipe 12. The oil injection pipe 12 delivers lubricating oil to the speed-increasing gearbox 2 through the oil inlet connector 4. Preferably, the maintenance mechanism also includes a first three-way connector 7, a second three-way connector 8, a first solenoid valve 9, and a second solenoid valve 10. Both ends of the oil injection pipe 12 are respectively connected to one of the connectors of the oil inlet connector 4 and the first three-way connector 7. The output end of the oil pump 6 is connected to one of the connectors of the first three-way connector 7. The other connector of the first three-way connector 7 is connected to one of the connectors of the second three-way connector 8. The other two connectors of the second three-way connector 8 are respectively connected to the first solenoid valve 9 and the second solenoid valve 10. The other end of the first solenoid valve 9 is connected to the oil outlet connector 3. In this embodiment, the maintenance mechanism includes an oil pump 6, a first three-way connector 7, a second three-way connector 8, a first solenoid valve 9, and an oil injection pipe 12. The oil injection pipe 12 is horizontally installed inside the oil temperature improvement mechanism. Both ends of the oil injection pipe 12 are fixedly connected to the top end of the oil inlet connector 4 and one connector of the first three-way connector 7, respectively. The output end of the oil pump 6 is fixedly connected to one connector of the first three-way connector 7. The other connector of the first three-way connector 7 is fixedly connected to one connector of the second three-way connector 8. The other two connectors of the second three-way connector 8 are respectively equipped with a first solenoid valve 9 and a second solenoid valve 10. One end of the first solenoid valve 9 is fixedly connected to one end of the oil outlet connector 3.

[0023] As an optimized solution for an embodiment of the present invention, please refer to Figures 1 to 3The oil temperature improvement mechanism includes a liquid tank 5, with the liquid phase fixedly installed on the top of the speed-increasing gearbox 2. An oil injection pipe 12 horizontally penetrates the liquid tank 5, and a third solenoid valve 13 is installed on the oil injection pipe 12. A confluence connector 15 is installed at one end of the oil injection pipe 12, and a diversion connector 14 is installed at the other end. Multiple semiconductor coolers 22 are fixedly installed through a side plate of the liquid tank 5. Preferably, the oil temperature improvement mechanism further includes a corrugated cooling plate 16, with multiple fine holes 21 of the same shape as the corrugated cooling plate 16. The fine holes 21 are interconnected with fourth solenoid valves 19 at both ends of the corrugated cooling plate 16. A first connector 17 is installed at one end of the corrugated cooling plate 16, and a second connector 18 is installed at the other end. The confluence connector 15 and the first connector 17 are fixedly sleeved together, and the diversion connector 14 and the second connector 18 are fixedly connected via the fourth solenoid valve 19. Preferably, an electric heating film is attached to the outer wall of the corrugated cooling plate 16. Preferably, an insulation layer is installed on the outer wall of the liquid tank 5, and a polytetrafluoroethylene liner is attached to the inner wall of the liquid tank 5. In this embodiment, the oil temperature improvement mechanism includes a liquid tank 5, a third solenoid valve 13, a diverter 14, a confluence 15, and a corrugated cooling plate 16. The liquid tank 5 is fixedly installed on the top surface of the top plate of the speed-increasing gearbox 2. The oil injection pipe 12 extends horizontally through the two parallel side plates of the liquid tank 5 to the outside of the liquid tank 5. A third solenoid valve 13 is installed on the oil injection pipe 12. A confluence 15 is vertically fixedly installed through the bottom of one end of the oil injection pipe 12, and a diverter 14 is vertically fixedly installed through the bottom of the other end of the oil injection pipe 12. A fourth solenoid valve 13 is provided inside both ends of the corrugated cooling plate 16. The corrugated cooling plate 16 has multiple fine holes 21 with the same shape as the corrugated cooling plate 16. The fine holes 21 are interconnected with the fourth solenoid valves 19 at both ends of the corrugated cooling plate 16. A first connector 17 is vertically fixedly installed through one end of the corrugated cooling plate 16, and a second connector 18 is vertically fixedly installed through the bottom of the other end of the corrugated cooling plate 16. The confluence connector 15 and the first connector 17 are fixedly sleeved together. The diversion connector 14 and the second connector 18 are fixedly connected through the fourth solenoid valve 19. Multiple semiconductor coolers are fixedly installed through one side plate of the liquid tank 5. The liquid tank 5 is a stainless steel tank. The outer wall of the liquid tank 5 is covered with a heat insulation layer. The inner wall of the liquid tank 5 is lined with polytetrafluoroethylene. A water inlet is installed through the top plate of the liquid tank 5, and a cap is threaded onto the water inlet. The corrugated cooling plate 16 is an aluminum alloy cooling plate, and an electric heating film is attached to the outer wall of the corrugated cooling plate 16 to ensure the fluidity of the lubricating oil when the ambient temperature is low in winter.

[0024] As an optimized solution for an embodiment of the present invention, please refer to Figure 1The device also includes a sensor assembly 11 for measuring the height and temperature of the lubricating oil inside the speed-increasing gearbox 2. The sensor assembly 11 is mounted on the inner wall of the speed-increasing gearbox 2. In this embodiment, the sensor assembly 11 consists of a level sensor and a temperature sensor, and is used to measure the height and temperature of the lubricating oil inside the speed-increasing gearbox 2.

[0025] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 The device also includes a filter screen for filtering impurities in the lubricating oil entering the speed-increasing gearbox 2, the filter screen being disposed inside the speed-increasing gearbox 2. In this embodiment, a filter screen for filtering impurities in the oil is installed on the bottom surface of the top plate of the speed-increasing gearbox 2, the filter screen being located directly below the oil inlet connector 4, facilitating the filtering out of impurities in the lubricating oil.

[0026] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 A waste discharge pipe is horizontally installed through the bottom of one side plate of the liquid tank 5. A fifth solenoid valve is installed on the waste discharge pipe. A flexible hose is fixedly connected to one end of the waste discharge pipe and one end of the second solenoid valve 10. One end of the flexible hose extends to the outside of the housing 1. The oil pump 6, the first solenoid valve 9, the second solenoid valve 10, the sensor assembly 11, the third solenoid valve 13, the fourth solenoid valve 19, the semiconductor cooler 22, and the electric heating film are all externally connected to power supplies and control switches.

[0027] Please see Figures 1 to 4 This invention also provides a maintenance method for a power generation device used in new energy development. A maintenance mechanism is used to replace the lubricating oil in the speed-increasing gearbox 2, thereby completing the maintenance of the speed-increasing gearbox 2. An oil temperature improvement mechanism is used to lower the temperature of the lubricating oil in the speed-increasing gearbox 2, thereby increasing the service life of the lubricating oil. In this embodiment, the speed-increasing gearbox 2 is fixedly installed inside the housing 1. An oil outlet connector 3 is horizontally fixedly installed through the bottom of one side plate of the speed-increasing gearbox 2. An oil inlet connector 4 is vertically fixedly installed through the top plate of the oil outlet connector 3. A maintenance mechanism with an oil pump 6 is installed on the top surface of the top plate of the speed-increasing gearbox 2.

[0028] Specifically, please refer to Figures 1 to 4When the wind power equipment needs to have its lubricating oil changed in the speed-increasing gearbox 2 after a certain period of operation, the first solenoid valve 9 and the second solenoid valve 10 are opened. After these valves are opened, the lubricating oil to be replaced in the speed-increasing gearbox 2 flows out through the oil outlet connector 3. After the lubricating oil is drained, the first solenoid valve 9 and the second connector 18 are closed, and the third solenoid valve 13 is opened. Then, the oil pump 6 is started, and one end of the hose connected to the second solenoid valve 10 is immersed in an oil drum containing new lubricating oil. When the oil pump 6 is working, the lubricating oil in the oil drum is drawn into the oil injection pipe 12, and then injected into the speed-increasing gearbox 2 through the oil inlet connector 4. The level of the lubricating oil in the speed-increasing gearbox 2 is observed through the level sensor of the sensor assembly 11. When the lubricating oil level in the speed-increasing gearbox 2 reaches the required height, the third solenoid valve 13 and the second solenoid valve 10 are closed, and the oil pump 6 stops working. At this point, the maintenance of the speed-increasing gearbox 2 is completed, eliminating the need for manual climbing of the wind power equipment tower for maintenance. Maintenance of speed gearbox 2: When the ambient temperature is high in summer, add an appropriate amount of pure water to the liquid tank 5 to make the semiconductor cooler 22 work intermittently. When the semiconductor cooler 22 is working, the temperature of the water inside the liquid tank 5 decreases. At this time, the first solenoid valve 9 and the second connector 18 are opened, and the oil pump 6 is started. When the oil pump 6 is working, the lubricating oil in the speed gearbox 2 is drawn out from the oil outlet connector 3 to the oil filling pipe 12. Since the third solenoid valve 13 is closed, the lubricating oil flows into the corrugated section from the diverter connector 14. The lubricating oil flows into the distribution chamber 20 of the corrugated cooling plate 16 and then into the various fine holes 21. Since the corrugated cooling plate 16 is immersed in the low-temperature water of the liquid tank 5, the temperature of the lubricating oil will be reduced when it flows through the fine holes 21. The cooled lubricating oil flows back into the oil injection pipe 12 through the first connector 17, and then flows back into the liquid tank 5 through the oil inlet connector 4. At this time, the lubricating oil flowing into the liquid tank 5 is low-temperature lubricating oil, which avoids the situation where the viscosity of the lubricating oil decreases due to the high ambient temperature and improves the service life of the lubricating oil.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power generation device for new energy development that is easy to maintain, comprising a housing and a speed-increasing gearbox built into the housing, characterized in that: The system also includes a maintenance mechanism for changing the lubricating oil in the speed-increasing gearbox and an oil temperature improvement mechanism for cooling the lubricating oil in the speed-increasing gearbox. Both the maintenance mechanism and the oil temperature improvement mechanism are located within the housing. The maintenance mechanism includes an oil outlet connector, an oil inlet connector, an oil injection pipe, and an oil pump. The oil pump is fixedly installed on the top of the speed-increasing gearbox. The lubricating oil in the speed-increasing gearbox flows out through the oil outlet connector. The oil pump draws lubricating oil from an oil tank into the oil injection pipe. The oil injection pipe delivers the lubricating oil to the speed-increasing gearbox through the oil inlet connector. The maintenance mechanism also includes a first three-way connector, a second three-way connector, a first solenoid valve, and a second solenoid valve. Both ends of the oil injection pipe are respectively connected to the oil inlet connector and one of the connectors of the first three-way connector. The output end of the oil pump is connected to one of the connectors of the first three-way connector, and the other connector of the first three-way connector is connected to one of the connectors of the second three-way connector. The other two connectors of the second three-way connector are connected to the first solenoid valve and the second solenoid valve respectively. The other end of the first solenoid valve is connected to the oil outlet connector. The oil temperature improvement mechanism includes a liquid tank, which is fixedly installed on the top of the speed-increasing gearbox. The oil injection pipe runs horizontally through the liquid tank. A third solenoid valve is installed on the oil injection pipe. A confluence connector is installed at one end of the oil injection pipe, and a diverter connector is installed at the other end of the oil injection pipe. Multiple semiconductor coolers are fixedly installed through one side plate of the liquid tank. The oil temperature improvement mechanism also includes a corrugated cooling plate. Multiple fine holes with the same shape as the corrugated cooling plate are opened in the corrugated cooling plate. The fine holes are interconnected with the fourth solenoid valves at both ends of the corrugated cooling plate. A first connector is installed at one end of the corrugated cooling plate, and a second connector is installed at the other end of the corrugated cooling plate. The confluence connector and the first connector are fixedly sleeved together. The diverter connector and the second connector are fixedly connected through the fourth solenoid valve.

2. The easy-to-maintain power generation device for new energy development as described in claim 1, characterized in that: An electric heating film is attached to the outer wall of the corrugated cooling plate.

3. The easy-to-maintain power generation device for new energy development as described in claim 1, characterized in that: The outer wall of the liquid tank is covered with an insulation layer, and the inner wall of the liquid tank is lined with a polytetrafluoroethylene liner.

4. The easy-to-maintain power generation device for new energy development as described in claim 1, characterized in that: It also includes a sensor assembly for measuring the height and temperature of the lubricating oil inside the speed-increasing gearbox, the sensor assembly being mounted on the inner wall of the speed-increasing gearbox.

5. The easy-to-maintain power generation device for new energy development as described in claim 1, characterized in that: It also includes a filter screen for filtering impurities in the lubricating oil that enters the speed-increasing gearbox, the filter screen being disposed inside the speed-increasing gearbox.

6. A maintenance method for a power generation device used in new energy development, characterized in that: For the apparatus as described in any one of claims 1-5, a maintenance mechanism is used to replace the lubricating oil in the speed-increasing gearbox to complete the maintenance of the speed-increasing gearbox; an oil temperature improvement mechanism is used to reduce the temperature of the lubricating oil in the speed-increasing gearbox and improve the service life of the lubricating oil.

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